I did enlarge my Orca spool holder to facilitate MTB3d Spools.
unfortunately, with one of my new other suppliers (Filament & Meer), even the enlarged holder was not long enough.
This is a 3cm longer version.
(All based on the original spool holder by Camiel)

• Please 'LIKE' before collecting!
  Thomas
  www.3Daybreaker.blogspot.com